Organizations may try to change constantly; but, after a certain point in the structuration of an organizational field, the aggregate effect of indiv… - Paul DiMaggio

The new institutionalism in organization theory and sociology comprises a rejection of rational-actor models, and interest in institutions as independent variables, a turn toward cognitive and cultural explanations, and an interest in properties of supra-individual units of analysis that cannot be reduced to aggregations or direct consequences of individual’s attributes or motives.

The new institutionalism focuses instead on nonlocal environments, either organisational sectors or fields roughly coterminous with the boundaries of industries, professions, or national societies. Environments, in this view, are more subtle in their influence; rather than being co-opted by organisations, they penetrate the organisation, creating the lenses through which actors view the world and the very categories of structure, action and thought.

Organizations compete not just for resources and customers, but for political power and institutional legitimacy, for social as well as economic fitness.